Question

a) 1/3 + 3/7 d)2/8 × 3/9=​

Answer 1

Resposta:

a) 16/21

b) 1/12

Explicação passo-a-passo:

$a) \frac{1}{3} + \frac{3}{7}$

$m.m.c = 21$

$\frac{7 + 9}{21} = \frac{16}{21}$

$d) \frac{2}{8} \times \frac{3}{9} = \frac{6}{72} = \frac{1}{12}$